Overview

Electrochemical sensor technology offers highly specific gas sensing in the low ppm range for many gases. The EC gas detector gives long-term dependable service while identifying target gases without the inconvenience or hazards of nuisance trips.

Manning Systems new SensorCheck™ is a microprocessor-based technology that monitors and predicts the electrical viability of its electrochemical ammonia sensors by testing every 24 hours. If the sensor dries up or is disconnected, SensorCheck™ sends an indication that can be detected by a Manning Systems Gas Monitor of PLC.

All enclosures have high-quality, durable construction, including robust, well-designed steel sensor and readout enclosures. High quality connectors ensure easy wire insertion. Unlike fragile plastic housings that may break in cold temperatures, Manning Systems enclosures have secured hardware and hinged doors to speed sensor installation in both cold and wet environments.

All sensors can accept the optional ATMOS equipped^® technology that allows Manning Systems electrochemical gas sensors to automatically adapt to their environment, providing accurate and reliable performance under the harshest conditions even down to -50ºF and condensing atmospheres.

EC-F9-NH₃ Electrochemical Ammonia Sensor

Manning Systems EC-F9-NH₃ has set the ammonia sensor standard for reliability, durability and long-term economical gas detection sensor performance.

EC-F9-NH₃ with SensorCheck™ provides a simple and reliable system for detecting ammonia leakage in almost any environment. This sensor is "gas specific" and will not trip in the presence of other gases. The sensor responds rapidly to ammonia gas concentrations in the low ppm range and will generally operate 2-4 years (depending on environment) between sensor replacement. The inexpensive cells are simple to replace and ideal for food processing areas, loading docks, fruit and vegetable storage and other chemically active environments. It has a linear 4/20 mA output and ranges include 0-100 ppm, -250, -500, and -1,000 ppm ammonia.

The EC-F9-NH₃ offers an LCD display option that will indicate ppm gas concentration during normal operation and show sensor operation status for changes in operating mode, calibration procedures and troubleshooting. Two external pushbuttons ("Accept" and "Scroll") are used to navigate test functions and operating modes. An internal pushbutton and group of LED's are also installed on the PCB to be used in the absence of the LCD module.

NOTE: The IR-NH₃ infrared sensor is used for high level (up to 2%) ammonia sensing, is specific to ammonia and often used for compressor room shutdown applications.

EC-F2 Electrochemical Ammonia Sensor

The Manning EC-F2 Sensor is a three-wire, 4/20 mA sensor for Ammonia available in ranges of 0-100 ppm, 0-250 ppm, 0-500 ppm and 0-1,000 ppm.

The Manning EC-F2 exhibits excellent accuracy and precision, with negligible response to common interference gases and dramatic changes in relative humidity. Reliable trip levels as low as 25ppm can be expected with the 0-100ppm sensor. The unit exhibits extremely high reliability with no moving parts.

EC-F3 Long Life Galvanic Cell Type Oxygen Sensor

The Manning EC-F3 exhibits excellent accuracy and precision, with negligible response to common interference gases and dramatic changes in relative humidity.

In the past, Oxygen sensors have been prone to be short lived and, at times, erratic. The Manning EC-F3 Oxygen sensor utilises a larger supply of electrolyte that is formulated to be minimally affected by interference gases, even Carbon Dioxide (CO2). The sensor is also temperature compensated.

Monitor one to 96 sensors from a single controller

Manning Systems can supply a single point gas sensor system, four channel system, or multi-channel unit that monitors as many as ten sensors at a single master safety control panel. The new AirAlert™ 96d multi-channel gas monitoring system adds addressable RS-485 Modbus communication protocol to the broad line of Manning Systems readout/alarm units. A total of 96 gas sensors and relay modules can be linked to a single controller.

All readouts have relay outputs to notify security personnel, activate fans, shut off valves or refrigeration equipment, etc. Sensors give a linear 4/20 mA output and can tie directly to a PLC or building control system.